Now it worked
-
Now it worked
Involving my own repository. So i caused the error. But the #Yunohost behaviour is suboptimal. A new self-hoster would have given up at this point.
(Error was most likely an additional dependency "dev" in the current install. Restore of backup install should work nonetheless after a failed upgrade. a fresh wiped install is not a successful restoration. )
PS: Spend the extra buck for full server backups and do them before EVERY update.